Less than a year after backing Tscan Therapeutics Inc.'s $48 million series B round, Novartis AG is tapping the Waltham, Mass.-based company to discover and develop new T-cell receptor (TCR)-engineered T-cell therapies for up to three new solid tumor targets. The collaboration includes an up-front technology access fee and research funding totaling $30 million, as well as potential clinical, regulatory and sales-based milestone payments that could total hundreds of millions of dollars, Tscan said.